/**
 * 项目名：化工企业安全生产信息化管理平台
 * 日期：    2020-03-01 22:19:08
 * Copyright (c) 2015- -版权所有
 */
package com.joysuch.wwyt.edu.service.impl;

import javax.transaction.Transactional;


import com.joysuch.wwyt.edu.bean.EduExamTestPaperDetailBean;
import com.joysuch.wwyt.edu.bean.EduExamTestPaperEditBean;
import com.joysuch.wwyt.edu.bean.EduExamTestPaperListBean;
import static com.joysuch.wwyt.edu.bean.EduExamTestPaperListBean.SearchEduExamTestPaper;

import com.joysuch.wwyt.core.common.util.PageDataUtils;
import com.joysuch.wwyt.core.common.util.PageDataUtils.PageDataConvert;
import com.joysuch.wwyt.core.service.BizCodeGeneratorFacade;
import com.joysuch.wwyt.core.exception.BusinessRestrictionsException;

import com.querydsl.core.types.Predicate;
import com.joysuch.wwyt.edu.entity.EduExamTestPaper;
import com.joysuch.wwyt.edu.entity.dsl.QEduExamTestPaper;
import com.joysuch.wwyt.edu.repository.EduExamTestPaperDao;
import com.joysuch.wwyt.edu.service.EduExamTestPaperService;

import com.querydsl.core.types.ExpressionUtils;
import com.querydsl.core.types.Predicate;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;
import org.springframework.util.Assert;

@Service
@Transactional
public class EduExamTestPaperServiceImpl implements EduExamTestPaperService {

    @Autowired
    private EduExamTestPaperDao dao;
    @Autowired
    private BizCodeGeneratorFacade bizCodeGeneratorFacade;

    @Override
    public EduExamTestPaper add(EduExamTestPaperEditBean entity) {
        EduExamTestPaper content  = new EduExamTestPaper();
        BeanUtils.copyProperties(entity, content, "id");
        return dao.save(content);
    }

    @Override
    public void update(EduExamTestPaperEditBean entity) {
        EduExamTestPaper content = dao.findById(entity.getId()).get();
        BeanUtils.copyProperties(entity, content, "id");
        dao.save(content);
    }

    @Override
    public Page<EduExamTestPaperListBean> findByPage(Pageable page , SearchEduExamTestPaper condition) {
        Predicate predicate = prepareListSearchCondition(condition);

        Page<EduExamTestPaper> data =  predicate == null? dao.findAll(page) : dao.findAll(predicate, page);

        return PageDataUtils.convertPageData(data, new PageDataConvert<EduExamTestPaperListBean, EduExamTestPaper>() {

            @Override
            public EduExamTestPaperListBean convert(EduExamTestPaper f) {
                EduExamTestPaperListBean bean = new EduExamTestPaperListBean();
                BeanUtils.copyProperties(f, bean);
                return bean;
            }

        });
    }

    private Predicate  prepareListSearchCondition(SearchEduExamTestPaper condition) {
        Predicate p = null;
        QEduExamTestPaper q = QEduExamTestPaper.eduExamTestPaper;
        if (condition.getExamId() != null) {
            p = ExpressionUtils.and(p, q.examId.eq(condition.getExamId()));
        }
        if (condition.getTestPaperId() != null) {
            p = ExpressionUtils.and(p, q.testPaperId.eq(condition.getTestPaperId()));
        }
        if (condition.getIndexNo() != null) {
            p = ExpressionUtils.and(p, q.indexNo.eq(condition.getIndexNo()));
        }
        return p;
    }
    @Override
    public void delete(Long id) throws BusinessRestrictionsException {
        //校验业务逻辑是否允许删除。如本数据被其他业务关联，删除后导致其他业务不可用。不能删除时将抛出业务异常
        checkBussinessRestrictions(id);
        dao.deleteById(id);
    }

    /**
     * 校验业务逻辑是否允许删除。如本数据被其他业务关联，删除后导致其他业务不可用
     * @param id 要删除的业务ID
     * @throws BussinessRestrictionsException 抛出的业务异常
     */
    private void checkBussinessRestrictions(Long id) throws BusinessRestrictionsException {

    }

    @Override
    public EduExamTestPaper findById(Long id) {
        return dao.findById(id).orElse(null);
    }

    @Override
    public EduExamTestPaperDetailBean getById(Long id) {
        EduExamTestPaper entity = findById(id) ;
        if(entity == null) {
            return null;
        }
        EduExamTestPaperDetailBean bean = new EduExamTestPaperDetailBean();
        BeanUtils.copyProperties(entity, bean);
        return bean;
    }

}
